4020240420422 has 4 divisors (see below), whose sum is σ = 6030360630636. Its totient is φ = 2010120210210.

The previous prime is 4020240420407. The next prime is 4020240420439. The reversal of 4020240420422 is 2240240420204.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 4020240420391 and 4020240420400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005060105104 + ... + 1005060105107.

It is an arithmetic number, because the mean of its divisors is an integer number (1507590157659).

Almost surely, 2^{4020240420422} is an apocalyptic number.

4020240420422 is a deficient number, since it is larger than the sum of its proper divisors (2010120210214).

4020240420422 is a wasteful number, since it uses less digits than its factorization.

4020240420422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010120210213.

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 4020240420422 its reverse (2240240420204), we get a palindrome (6260480840626).

The spelling of 4020240420422 in words is "four trillion, twenty billion, two hundred forty million, four hundred twenty thousand, four hundred twenty-two".